Rotary motor



Aug. 4, 1936. w. RUSTEMEYER Filed Feb. 20, 1952 2 Sheets-Sheet R O T N E V m WRufllemeyer BY ms ATTORNEY9* a Aug. 4, 1936.

W. RUSTEMEYER ROTARY MOTOR Filed Feb. 20, 1932 2 Sheets-Sheet 2 INVENTOR WBup'Zemeyer Y 21-1 5 ATTORNEY 2 I Patented Aug. 4, 1936 PATENT OFFICE ROTARY Moron William Rustemeyer, Kingston, N. Y. Application February 20, 1932, Serial No. 594,229

- 1 Claim.

. The main object of this invention is the provision of a rotary cylinder explosive engine having the cylinders formed in a substantially solid cylindrical block, the latter serving at the same time as any wheel. I Another object of the invention is 'the provision of "such a motorhaving its cylinders cut out radially from a cylindrical block, the head ends of the cylinders opening orithe periphery of the block, and a peripheral housing surrounding the block and having suitable grooves on the inner side thereof for'inlet and exhaust, the rotation of the block in the housing automatically opening or closing the inlet and exhaust at the proper time. 'Still another object of the invention is th provision of means for'utilizing the power developed by the rotating cylindrical block.

A still further object is theprovision of a readily demountable wall on one side of the cylindrical block or rotor, whereby access to the crank shaft and the chamber containing the latter, may be promptly had for making repairs or for other purposes. V p 7 The above and other'objects will become apparent in the description below, in which characters of reference refer to like-named parts in the drawings.

Referring briefly to the drawings, Figure 1 is a sectional front elevational View of the motor.

Figure 2 is a plan view of the same, partly in section, with the upper half of the housing removed.

Figure 3 is a cross-sectional View taken on the line 33 of Figure 4.

Figure 4 is an enlarged fragmentary view of.

the demountable side wall.

Figure 5 is a rear elevational view of the motor.

Figure 6 is a side elevational View of the same.

Referring in detail to the drawings, the numeral l represents a substantially solid cylindrical block comprising the rotor of the motor; At distances of a quadrant apart, radial cylinders H are bored out of the block l0, and an axial bore is made in theblock to provide a central axial crank chamber M.

A shaft !3, having a crank portion I4, is centrally supported in the block ill, and a sleeve l surrounds the crank l4. Spaced-apart from each other at a quadrants distance, ears I6 are rigidly mounted on the sleeve and extend radially therefrom. Connecting rods I! are pivotally secured to the ears l6 and to piston rods 58 which extend from the pistons l9 which are slidable in the cylinders ll.

A cylindric'al housing 26 surrounds the block l6,"- and is provided at one point with a spark r plug 2|. At a point about a quadrants distance,

in" the direction of the arrow in Figure 1, from the spark plug, a groove 22 is formed in the inner surface of the housing 20, and an exhaust tube 23 leads outward from the groove 22. At approximately another quadrants distance, a lo relatively longer groove 24 is formed in the housing, and an inlet tube 25 leads into said groove. v 7 i Disk-like side walls'ze and 21 are attached to the flat sides of the block ill, the latter being 15' permanently secured by means ofscrews or the like," and the former being secured by means which permit ready removal of this Wall to provide accessto the interior of the block Ill. The housing 26 is continued over the front side of 5 the rotor Ill, covering the side wall 21. A pedestal 29 is provided to support the housing and the 'motor contained therein. Acentral opening 'is-'-prov ide d in each of the walls 26, 2'l, and 23 for thepassage therethrough of the shaft I3. 125

The shaft I3 is retained in a hub 30 about the opening in wall 28, by a pin 3| which prevents rotation of the shaft, and the opposite end of the shaft is supported on a pedestal 32 and held rigid therein by a pin 33. 30

The wall 26 is positioned on the rear side of the rotor It by dowel pins rigid with the rotor and passing through holes in the wall 26. Along the peripheral edge of the wall 26, at regularly spaced-apart positions, a plurality of square open- 35 ings 35 are provided, one side 36 of which is straight (at right angles to the wall) and the other side of which is inclined, as shown at 31. A like number of resilient, relatively heavy, spring fingers 38 project, at similarly spaced-apart po- 40 sitions, from the wall of the rotor l0, these fingers being imbedded or otherwise secured in the rotor side in any desirable manner. The fingers as shown are of less width than the width of the openings 35 (Figure 4), but they may be of equal A second support for this shaft may be provided,

at a distance from the support arm 42, if necessary, to further stabilize the device. A pinion 44 lies in mesh with the ring gear 4|, and is supported by its hub on the shaft 43 by a pin or the like 46. It is to be noted that the lower bounding edge of the pinion 44 lies at a small distance from the upper bounding edge of the wall 26 (Figure 2), this being necessary to permit the pinion and wall to rotate in opposite directions. A circular opening 41- is provided through the vvall 26, of sufiicient diameter to permit passing of the shaft 43 therethrough, and whose distance from the axis of rotation of rotor H! is the same as that of shaft 43.

The complete operation of the device is as follows: Assuming that the four pistons 19 in Figure 1 represent four successive positions of the same piston, indicated by the numerals 41, 48, 49, and 50, let it also be assumed that the spark plug II has just fired, with the piston in position 48,

causing the explosive mixture in the cylinder to forcethe piston downward. Since the shaft 13 is rigid and stationary, the rotor IE will rotate'in the direction of the arrow, carrying the piston with it. At the beginning of the exhaust groove 22, the explosive force will have largely spentitself, but there will remain sufficient force to cause explosive-like exhaust of the burned gases into the groove and through exhaust tube 23. As the piston leaves position 49, the exhaust communication with the cylinder will be cut off, and when it arrives at the beginning of the groove 24, the cylinder will begin to receive the inlet gas mixture. This inlet mixture will arrive at the inlet 25 under pressure, having been compressed by a pump, not shown. While the cylinder is passing groove 24, it will continue to take in the inlet gases, and this intake will cease when the cylinder has passed this groove. Then, after the piston leaves position 50, and the open end of the cylinder will be closed by the housing 20, the piston will have passed its maximum central movement and will begin its return, or compression stroke, thus compressing the mixture in its passage from position 5! through position, and maximum compression will occur at position 48, just before the spark is passed. The spark is passed at the proper time by a distributor which may be geared to shaft 43, and which is not shown.

When access to the interior of the rotor H) is desired, pin 46 is extracted and hub 45, and its pinion 44, are slid back along shaft 43. The rotor IE] is then turned by hand, or with tools, until opening 41 is alined with shaft 43. The wall 26 is then withdrawn by pulling on hand grips 40, the opening 41 slipping over and along the shaft 15 43. The coverv may thus be pushed along this shaft any desired distance, and ready access to the interior of the rotor is attained.

Rotation of the rotor I0 produced as described, will cause ring gear 4| to rotate pinion 44, which hence rotates shaft 43, and the load to be driven is connected to this shaft in any suitable manner, not shown. The weight and solidity of the rotor I0 is obviously such that the usual fly wheel may be dispensed with. No means for cranking the motor for starting have been shown, as such means might be provided in any desirable way.

Obviously, modifications in form and structure may be made without departing from the spirit of the invention. 30

I claim:

In a cylindrical block'open on one side, a wall secured to said open side of'said block and comprising a disk-like plate having a plurality of peripheral openings passing through said wall, one side wall of each of' said openings being angular,

a plurality of resilient spring fingers peripherally mounted on said open side of said block adapted to register in said openings, said fingers being normally angular to said open side and having 40 hookedrounded ends, said angular fingers normally engaging said angular side walls of said openings.

WILLIAM RUSTEMEYER. 

